I received an email from the engineers on 10/18/24 about this issue, here is what they said: 

"Our engineers have determined this is working as designed.... There will be no further updates on this investigation." 

This is unacceptable! I cannot believe that accounting software requires a calculator to calculate line totals. QB online is so buggy and glitchy, and QB support's response is "try another browser" or "try a private browser window." Rarely does QB support resolve my issues. I am fed up with QB and will pay anything to NEVER give QB another dollar. Already have meeting scheduled with other companies to switch my books over.